Improvement in cotton-gins



W. B. EMERY.

Cotton Gin.

Patented May 9, 1865.

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Invert-Z01 UNITED STATES PATENT ()FFICE.

WILLIAM B. EMERY, OF ALBANY, NEW YORK.

IMPROVEMENT IN COTTON-GINS.

Specification forming part of Letters Patent No. 47,626, dated May 9, 1865; antedated M ay 5, 1865.

To aZZ whom it may concern:

Be it known that I, WILLIAM B. EMERY, of the city and county of Albany, and State of New York, have invented an Improvement in the Construction of Cotton-Grins; and I do declare that the following is a full and exact detrunnions of the hopper enter the socket, and

also showing the set-screw.

Similar letters indicate similar parts in each figure.

A is the end or head-plate of hopper; B, ribs or sections of breast of hopper; O, shield or upper part of breast, to the lower edge of which (being a slotted plate) the upper ends of the ribs are fastened; E, slotted bar across the lower part of hopper, and to which the lower ends of the ribs are fastened; D and D, slots through which the bolts pass, bywhich the ribs are fastened; F, bolts which fasten the ribs; G, section of a part of the side wall of the gin; H, trunnion or pivot by which the hopper is hinged to the gin; I and J, setscrew and check-nut.

The improvements are as follows: The bolts F, passing through slotted plates which extend across the breast of the gin, enable the ribs to be fitted to the saws with greater facility than is the case when each rib is fastened by a sep arate hole and to be adjusted individually whennecessary. It also. facilitates the con structing of the gin, as it does not require the saws to be set 'to a templet, the ribs being readily adjusted to suit any in the spacing of the saws.

slight variation The slot may be in a solid plate or bar,

by placing two bars or plates side by side,

leaving a suitable space between. them.

This invention relates to gins having awooden frame-work, as well as to those constructed wholly or partially of iron. When the hop per of the gin is wholly made of iron, the slotted plates may constitute the transverse girts or ties of the hopper at the top and bottom of the breast, while in hoppers made of wood the slotted plates may be laid along the wood girts or ties which extend across the hopper at the top and bottom of the breast, and to which the ribs are usually fastened by woodscrews. The plates in the latter case should be so attached to the wood that they are free a to expand and contract (in consequence of; changes in the temperature of the atmosphere) without disturbing theirfastenings; also, the

hinges of the hopper consist of trunnions or pivots projecting from the head-plate of the hopper and fillinginto corresponding sockets the sockets be in the side wall of the gin, ing providedwith set-screws or other means by which the hopper may be moved to the right or left whenever all the ribsrequire to be moved in either direction. These sockets. may be solid, or they may be provided with movable tops to facilitate the putting in or taking out of the hopper. i

Having thus described the invention, what I desire to secure by Letters Patent of the United States, is-

Fastening the ribs of the breast to slotted plates or bars in the manner and'for the purpose substantially as described.

Witnesses:

GEORGE W. EMERY, H. S. WITBECK.

or it maybe produced WILLIAn B. EMERY. 

